PhotoQt is a simple, yet powerful and good looking image viewer, written in C++/Qt, published as open-source, and completely free. Developed by Lukas Spies
License: Open Source
Mylio is a comprehensive photo management solution with robust organization and editing features, along with synchronization capabilities across devices. In contrast, PhotoQt is a lightweight, open-source application best suited for basic photo viewing and editing, lacking advanced organizational tools and cloud integration.